Morgan, Reid, and the BAU travel to Portland to investigate a suspected gang of murderers targeting a new victim each night

Prentiss prepares to finally confront her nemesis; the team asks J.J. to help find Prentiss and capture Doyle.

After a series of murders, Prentiss becomes suspicious of a former nemesis (Sebastian Roché) and fears for the safety of her team.

Reid's ability to connect with an autistic child may prove helpful in finding the boy's missing parents; two former colleagues help Prentiss search for an old adversary.

The BAU heads to upstate New York to investigate mysterious disappearances; Prentiss receives troubling news about a former colleague.

The team investigates unusual murders in Los Angeles, and more information about Prentiss' past arises.

The team pursues two young lovers on a killing spree; Prentiss receives frightening news.

A series of bizarre, ritualistic murders brings the team to Miami; Reid experiences hallucinations and blinding headaches.

The team pursues a serial killer targeting families in the Midwest; Morgan receives a visit from Ellie after she runs away from her foster family.

The team searches for a serial killer who is preying on married couples; Hotchner looks to a team member to fill JJ's vacant role.

When several women are murdered, Rossi revisits a 25-year-old case that causes him to suspect a killer is at work again.

JJ tries to reunite parents with their missing daughter; the team braces for the loss of one of its own.

The team closes in on a serial killer (Tim Curry) holding Detective Spicer's daughter hostage.

Morgan, Reid, and the BAU travel to Portland to investigate a suspected gang of murderers targeting a new victim each night

Prentiss prepares to finally confront her nemesis; the team asks J.J. to help find Prentiss and capture Doyle.

After a series of murders, Prentiss becomes suspicious of a former nemesis (Sebastian Roché) and fears for the safety of her team.

Reid's ability to connect with an autistic child may prove helpful in finding the boy's missing parents; two former colleagues help Prentiss search for an old adversary.

The BAU heads to upstate New York to investigate mysterious disappearances; Prentiss receives troubling news about a former colleague.

The team investigates unusual murders in Los Angeles, and more information about Prentiss' past arises.

The team pursues two young lovers on a killing spree; Prentiss receives frightening news.

A series of bizarre, ritualistic murders brings the team to Miami; Reid experiences hallucinations and blinding headaches.

The team pursues a serial killer targeting families in the Midwest; Morgan receives a visit from Ellie after she runs away from her foster family.

The team searches for a serial killer who is preying on married couples; Hotchner looks to a team member to fill JJ's vacant role.

When several women are murdered, Rossi revisits a 25-year-old case that causes him to suspect a killer is at work again.

JJ tries to reunite parents with their missing daughter; the team braces for the loss of one of its own.

The team closes in on a serial killer (Tim Curry) holding Detective Spicer's daughter hostage.